{"product_id":"rocket-o-ring-dusche-boxer-r9","title":"Rocket O-ring for shower screen – Boxer and R9 – R499905544","description":"\u003cdiv class=\"ccc-mobile-wrapper\"\u003e\n\u003cstyle\u003e.ccc-mobile-wrapper{max-width:880px;margin:0 auto;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:#1d1d1f;line-height:1.65;font-size:17px}.ccc-mobile-wrapper h2{font-size:1.7em;line-height:1.25;margin:0 0 .6em;font-weight:700}.ccc-mobile-wrapper h3{font-size:1.3em;line-height:1.3;margin:1.8em 0 .5em;font-weight:700}.ccc-mobile-wrapper h4{font-size:1.05em;margin:1.1em 0 .2em}.ccc-mobile-wrapper p{margin:0 0 1em}.ccc-mobile-wrapper a{color:#0b6b5f;text-decoration:underline}.ccc-compare-table{width:100%;border-collapse:collapse;margin:1em 0;font-size:.97em}.ccc-compare-table th,.ccc-compare-table td{text-align:left;padding:10px 12px;border-bottom:1px solid #e3e3e6;vertical-align:top}.ccc-compare-table th{width:42%;font-weight:600;color:#3a3a3c}.ccc-roastery-tip{background:#eff6f4;border-left:4px solid #0b6b5f;border-radius:10px;padding:16px 18px;margin:1.6em 0}.ccc-return-note{background:#fdf3ef;border-left:4px solid #b4532a;border-radius:10px;padding:16px 18px;margin:1.6em 0}.ccc-faq h4{font-weight:700;margin:1.2em 0 .2em}@media(max-width:600px){.ccc-mobile-wrapper{font-size:16px}.ccc-mobile-wrapper h2{font-size:1.45em}.ccc-mobile-wrapper h3{font-size:1.18em}}\u003c\/style\u003e\n\u003ch2\u003eThe ring that stops the brew water from taking the wrong path\u003c\/h2\u003e\n\u003cp\u003eThe seal between the shower screen and the group body has to be tight, otherwise the water finds its way past the shower screen instead of through the coffee grounds. This O-ring does exactly that job – and because it constantly alternates between 90 degrees hot and cool, it is a classic wear part. Part number R499905544.\u003c\/p\u003e\n\u003cp\u003eAccording to the documentation, the same number is also used at the group connection of the R9. An old O-ring is hard, shows a permanent imprint and no longer springs back when you squeeze it between your fingers. By then at the latest, it only seals as long as you tighten it hard – and that comes at the expense of the thread.\u003c\/p\u003e\n\u003ch3\u003eWhen it is due\u003c\/h3\u003e\n\u003cp\u003eReplacement is due if water escapes at the edge of the shower screen, if the ring has become hard, brittle or cracked, if its cross-section is permanently flattened, and whenever the shower screen is removed anyway. As a rule, an O-ring is never fitted twice – it costs too little for that to be worthwhile.\u003c\/p\u003e\n\u003ch3\u003eAt a glance\u003c\/h3\u003e\n\u003ctable class=\"ccc-compare-table\"\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eO-ring, gasket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInstallation location\u003c\/th\u003e\n\u003ctd\u003eBetween the shower screen and the group body; according to the documentation also at the group connection of the R9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eRocket Boxer and R9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eScope of delivery\u003c\/th\u003e\n\u003ctd\u003eOne O-ring according to the manufacturer's specification for number R499905544\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eR499905544\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVersion\u003c\/th\u003e\n\u003ctd\u003eInner diameter, cross-section thickness and material are not specified in the documentation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eRocket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInstallation\u003c\/th\u003e\n\u003ctd\u003eInstallation by a specialist recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eImportant for installation\u003c\/h3\u003e\n\u003cp\u003eThe ring sits in the pressurised, hot water path of the brew group. Before touching anything, unplug the machine and let it cool down. When fitting it, make sure the ring lies completely in its groove and does not get pinched – a squashed O-ring seals on the first extraction and no longer on the second. We deliberately do not provide step-by-step instructions here.\u003c\/p\u003e\n\u003ch3\u003eWho it is for\u003c\/h3\u003e\n\u003cp\u003eFor anyone removing the shower screen on a Boxer or an R9. If you have the group open anyway, it is best to replace the shower screen, screw and O-ring in one go. For businesses, a small stock is worthwhile – the ring costs next to nothing and would otherwise hold up an entire service appointment.\u003c\/p\u003e\n\u003ch3\u003eWhat goes with it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/en\/products\/rocket-dusche-boxer\"\u003eRocket shower screen brew group – Boxer\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en\/products\/rocket-schraube-dusche-boxer-r9\"\u003eRocket screw for shower screen – Boxer and R9\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en\/products\/rocket-flanschdichtung-bruehgruppe\"\u003eRocket flange gasket brew group\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en\/collections\/ersatzteile-rocket-boxer\"\u003eAll spare parts for the Rocket Boxer\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"ccc-roastery-tip\"\u003e\n\u003cp\u003e\u003cstrong\u003eFrom our workshop in Bern and Zurich\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe never fit new O-rings dry; instead, we moisten them with a few drops of water first. Rings fitted dry twist when tightened and then sit crooked in the groove – with water, they slide into place. This is our routine, not a manufacturer requirement. We like to do the test extraction afterwards with \u003ca href=\"\/en\/products\/nutty-delight-kaffee-blend-brasilien-indien\"\u003eNutty Delight\u003c\/a\u003e or \u003ca href=\"\/en\/products\/cozy-chocolate-natural-brasilien-kaffeebohnen\"\u003eCozy Chocolate\u003c\/a\u003e, and in hospitality settings with \u003ca href=\"\/en\/products\/very-nutty-kraftiger-robusta-aus-indien\"\u003eVery Nutty\u003c\/a\u003e. More in our \u003ca href=\"\/en\/collections\/kaffeebohnen\"\u003ecoffee bean selection\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ccc-return-note\"\u003e\n\u003cp\u003e\u003cstrong\u003eReturns excluded\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOriginal spare parts are excluded from exchange and return. They are procured to order and cannot be resold after installation or a test fitting on the machine. So before ordering, please check the model, year of manufacture and serial number of your machine – or drop us a line and we will clarify the fit together. Your rights in the case of defective goods remain unaffected.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ccc-faq\"\u003e\n\u003ch4\u003e\u003cstrong\u003eWhat are the dimensions of the O-ring?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eInner diameter, cross-section thickness and material are not specified in the documentation. For O-rings, the part number is therefore decisive: R499905544.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCan I use an O-ring from an assortment box?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eWe advise against it. In brew water at around 90 degrees, the material is crucial, and a standard NBR ring will not last long there.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eIs the shower screen included?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eNo. We list the shower screen and retaining screw as separate items.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eIs it true that the same ring is also used at the R9 group connection?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThat is what the documentation for number R499905544 says. If you need the part for that position on the R9, send us the serial number to be on the safe side.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCan I see the part in your showroom?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eYes. We are in Bern at Gerberngasse 44 and in Zurich at Hagenholzstrasse 50b.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003eUnsure about the fit? Send us your machine's serial number at \u003ca href=\"mailto:office@coffeecoachingclub.ch\"\u003eoffice@coffeecoachingclub.ch\u003c\/a\u003e. We deliver across Switzerland and to Liechtenstein in 2-4 working days.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What are the dimensions of the O-ring?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Inner diameter, cross-section thickness and material are not specified in the documentation. For O-rings, the part number R499905544 is therefore decisive.\"}},{\"@type\":\"Question\",\"name\":\"Can I use an O-ring from an assortment box?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"We advise against it. In brew water at around 90 degrees, the material is crucial.\"}},{\"@type\":\"Question\",\"name\":\"Is the shower screen included?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. We list the shower screen and retaining screw as separate items.\"}},{\"@type\":\"Question\",\"name\":\"Is it true that the same ring is also used at the R9 group connection?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"That is what the documentation for number R499905544 says. Send us the serial number to be on the safe side.\"}},{\"@type\":\"Question\",\"name\":\"Can I see the part in your showroom?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. We are in Bern at Gerberngasse 44 and in Zurich at Hagenholzstrasse 50b.\"}}]}\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Rocket","offers":[{"title":"Default Title","offer_id":56309817246081,"sku":"A01752","price":5.17,"currency_code":"CHF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/2265\/2931\/files\/A01752_1.jpg?v=1790140813","url":"https:\/\/coffeecoachingclub.ch\/en\/products\/rocket-o-ring-dusche-boxer-r9","provider":"Coffee Coaching Club GmbH","version":"1.0","type":"link"}